Gowri Krishnan S, Pua F- ling, Palanisamy K, Nabihah Syed Jaafar S, Subramaniam K. Oil Palm Empty Fruit Bunches Fiber-Supported Heterogeneous Acid Catalyst for Esterification of Oleic Acid: Effect of Different Transition Metal Sulfate. IJET [Internet]. 2018 Nov. 30 [cited 2024 Apr. 29];7(4.35):870-5. Available from: https://www.sciencepubco.com/index.php/ijet/article/view/26272